Piotr Kwiek and Antoni Śliwiński, "Some recollections on acousto-optics research at the University of Gdańsk in the light of international cooperation and of the history of Spring Schools on Acousto-Optics and Applications," Appl. Opt. 48, C125-C134 (2009)

Abstract

Some historical features of international cooperation that have been a background for originating the idea to organize since 1980 special international meetings named Spring Schools on Acousto-Optics and Applications and for continuing the events until now are presented. Thanks to the establishment of the Spring Schools, the group of acousto-opticians at the Gdańsk University have had the opportunity to exchange scientific experience and continue mutual cooperation in research with several acousto-optic centers and to publish a number of common papers. A few examples from these achievements and some historical facts illustrating research activity in the field of acousto-optics during past 30 years are recollected.

A. Śliwiński and M. Łabowski, “Fluctuations of patterns of light diffracted on an ultrasonic wave in a medium near the critical point considered as the result of hypersonic processes,” in Proceedings of the 7th International Congress on Acoustics (Technical University, Budapest, 1971), Vol. 4, pp. 65-68.

O. Leroy, P. Kwiek, and A. Śliwiński, “Light diffraction by ultrasonic beams having phase difference,” in Proceedings of the First International Symposium on Ultrasonic Materials Characterization Held at NBS, NBS Special Publication 596 (National Bureau of Standards, 1978), pp. 657-663.

O. Leroy, P. Kwiek, and A. Śliwiński, “Light diffraction by ultrasonic beams having phase difference,” in Proceedings of the First International Symposium on Ultrasonic Materials Characterization Held at NBS, NBS Special Publication 596 (National Bureau of Standards, 1978), pp. 657-663.

Labowski, M.

A. Śliwiński and M. Łabowski, “Fluctuations of patterns of light diffracted on an ultrasonic wave in a medium near the critical point considered as the result of hypersonic processes,” in Proceedings of the 7th International Congress on Acoustics (Technical University, Budapest, 1971), Vol. 4, pp. 65-68.

O. Leroy, P. Kwiek, and A. Śliwiński, “Light diffraction by ultrasonic beams having phase difference,” in Proceedings of the First International Symposium on Ultrasonic Materials Characterization Held at NBS, NBS Special Publication 596 (National Bureau of Standards, 1978), pp. 657-663.

O. Leroy, P. Kwiek, and A. Śliwiński, “Light diffraction by ultrasonic beams having phase difference,” in Proceedings of the First International Symposium on Ultrasonic Materials Characterization Held at NBS, NBS Special Publication 596 (National Bureau of Standards, 1978), pp. 657-663.

A. Śliwiński and M. Łabowski, “Fluctuations of patterns of light diffracted on an ultrasonic wave in a medium near the critical point considered as the result of hypersonic processes,” in Proceedings of the 7th International Congress on Acoustics (Technical University, Budapest, 1971), Vol. 4, pp. 65-68.

O. Leroy, P. Kwiek, and A. Śliwiński, “Light diffraction by ultrasonic beams having phase difference,” in Proceedings of the First International Symposium on Ultrasonic Materials Characterization Held at NBS, NBS Special Publication 596 (National Bureau of Standards, 1978), pp. 657-663.

A. Śliwiński and M. Łabowski, “Fluctuations of patterns of light diffracted on an ultrasonic wave in a medium near the critical point considered as the result of hypersonic processes,” in Proceedings of the 7th International Congress on Acoustics (Technical University, Budapest, 1971), Vol. 4, pp. 65-68.

Figures (16)

Original historical (1978) recording of the light intensity in J+1 diffraction order after passing through two ultrasonic beams of frequency ratio n=1∶2 (1 and 2MHz, respectively) in the first order versus the phase difference δ. After Leroy et al. [8].

(a) Diffraction of light by two adjacent ultrasonic beams of frequency ratio n=f1/f2, Raman–Nath parameter ratio α=μ1/μ2, and the phase shift δ. (b) Example of the theoretical (---) and experimental (...) time dependence of light intensity in +1 and −1 orders of light diffraction by two antiparallel ultrasonic beams against δ=Ωt for frequency ratio 1∶2, the Raman–Nath parameter ratio μ1/μ2=1.2, f1=0.8MHz, and f2=1.6MHz. After Blomme et al. [10], reproduced from Proceedings of Ultrasonics International, 1985, with the kind permission of Elsevier.

Principle of operation of an AO modulator using two adjacent ultrasonic beams with the phase shift δ; G1, G2 are signal generators; Gδ is a phase shifting generator. After Kwiek and Śliwiński [11], reproduced from Opt. Eng., 1992, with the kind permission of SPIE.

Application of the AO modulator using two ultrasonic beams for controlling laser action in its resonator cavity. After Kwiek and Śliwiński [11] reproduced from Opt. Eng., 1992, with the kind permission of SPIE.

1st School on Acousto-Optics and Applications, Gdańsk-Wieżyca, 1980, in front of the Institute of Physics Building, University of Gdańsk. From the left: B. Linde, I. Gabrielli, A. Śliwiński, P. Kwiek; from A. Śliwiński’s archives.

University of Gdańsk, 1991, Honoris Causa Doctoris ceremony for Prof. Oswald Leroy (in the middle) of Catholic University of Leuven, Campus Kortrijk. On the left: Prof. A. Kowalski, Deputy Dean of the Faculty of Mathematics, Physics and Chemistry. On the right: Prof. A. Śliwiński, Promotor, before presenting the ”Laudationem.” From A. Śliwiński’s archives.

Diffraction patterns for light interacting with the first beam of frequency f1=1.048MHz (a), with the second beam of frequency f2=1.572MHz (b), and with both beams of frequency ratio f1∶f2=2∶3 (c); after Gabrielli et al. [16]. Reproduced from Acustica, 1988, with the kind permission of S. Hirzel Verlag GmbH.